Catalyst drying tunnel kiln

Abstract

The utility model relates to the field of catalyst processing technology, specifically disclose a kind of catalyst drying tunnel kiln, including box, the opening of one end of box is arranged, the bottom end of the cavity of box is uniformly and interval fixedly set with several groups of guide rail, several groups of guide rail are all slidably set with truck in cooperation, the bottom end of truck is uniformly and interval rotatably set with four groups of moving wheel, the both sides of truck bottom end are rotatably set with guide wheel in cooperation guide rail, two groups of guide wheels are all set in guide rail, the bottom end of the cavity of box is also fixedly set with pipeline drying mechanism, pipeline drying mechanism includes several air supply ducts that are uniformly and interval fixedly set in the bottom end of the cavity of box, several air outlet pipes are uniformly and interval set on the sidewall of air supply duct, the side away from the opening end of box is provided with circulating fan. The utility model is through setting pipeline drying mechanism, eliminates the temperature difference of the corner and center of box, ensures that the overall heating of de-icing catalyst is uniform.

Description

Technical Field

[0001] This utility model relates to the field of catalyst processing technology, and specifically discloses a catalyst drying tunnel kiln. Background Technology

[0002] Drying is a crucial step in the production of denitrification catalysts, directly affecting the catalyst's molding quality, activity, and service life. Currently, most existing catalyst drying equipment suffers from problems such as uneven drying, low drying efficiency, and catalyst cracking during the drying process.

[0003] Traditional drying equipment mostly uses top air supply or side wall heating, resulting in short hot air circulation paths and the formation of dead air zones. This leads to uneven temperature and humidity in different locations within the chamber, especially inside large catalyst modules, affecting product quality consistency. At the same time, catalysts are usually loaded on heavy trolleys or shelves, and when pushed into the tunnel kiln, they are prone to collisions due to the lack of guiding and alignment devices, making operation laborious and positioning inaccurate. In addition, existing drying ovens lack active and uniform humidification and conditioning methods. In the early stages of drying, the rapid evaporation of moisture in the wet catalyst material can easily lead to surface crusting and cracking, reducing the product qualification rate. Utility Model Content

[0004] In view of the shortcomings of the prior art, the present invention provides a catalyst drying tunnel kiln to solve the problems of uneven heating in the drying equipment and the laborious operation and inaccurate positioning of the catalyst loading carrier in the prior art.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] The catalyst drying tunnel kiln includes a box body with an opening at one end. Several sets of guide rails are evenly and spacedly fixedly arranged at the bottom of the box body's inner cavity. Several cargo carts are slidably arranged within each set of guide rails. Four sets of moving wheels are evenly and spacedly arranged at the bottom of each cargo cart. Guide wheels are rotatably arranged on both sides of the bottom of each cargo cart, with both sets of guide wheels located within the guide rails. A pipeline drying mechanism is also fixedly arranged at the bottom of the box body's inner cavity. The pipeline drying mechanism includes several air supply ducts evenly and spacedly fixedly arranged at the bottom of the box body's inner cavity. Several air outlet pipes are evenly and spacedly arranged on the side walls of the air supply ducts. A circulating fan is located on the side of the box body away from the opening end. The ends of the air supply ducts near the circulating fan are connected to the air outlets of the circulating fan, while the other ends of the air supply ducts are closed.

[0007] Furthermore, two sets of mounting grooves are evenly spaced at the top of the inner cavity of the box. Each set of mounting grooves includes several mounting grooves evenly spaced along the length of the box. Atomizing nozzles are fixedly installed in the middle of each of the mounting grooves.

[0008] Furthermore, a water tank is installed on the side of the chamber away from the opening. The water tank is equipped with a dual-output high-pressure water pump. Both output ends of the dual-output high-pressure water pump are fixedly connected to high-pressure water pipes. Both sets of high-pressure water pipes are fixedly installed on the top of the chamber. Two sets of atomizing nozzles are connected to the two sets of high-pressure water pipes respectively.

[0009] Furthermore, there are three sets of air supply ducts, and the three sets of air supply ducts and two sets of guide rails are arranged alternately.

[0010] Furthermore, on both sides of the air supply duct in the middle, several air outlet pipes are uniformly and fixedly installed along the length of the air supply duct. On the opposite sides of the two sets of air supply ducts on both sides, several air outlet pipes are uniformly and fixedly installed along the length of the air supply duct.

[0011] Furthermore, at the bottom of each of the three sets of air supply ducts, several fixed bases are uniformly and spaced along the length of the air supply duct, and the fixed bases are all fixedly installed at the bottom of the inner cavity of the box.

[0012] Furthermore, the cargo truck includes a fixed bracket, four sets of movable wheels and two sets of guide wheels, all rotatably mounted at the bottom of the fixed bracket, and several sets of fixed support rods are evenly and intermittently fixed between the inner walls on both sides of the fixed bracket along the height direction of the fixed bracket.

[0013] Furthermore, each set of fixed supports includes several fixed supports that are evenly spaced along the horizontal direction.

[0014] Furthermore, each set of fixed support rods can have several placement plates placed horizontally at its top, and the denitrification catalyst can be placed at the top of each placement plate.

[0015] Furthermore, a limit track is fixedly installed at one end of the guide rail near the outlet of the box.

[0016] The beneficial effects of this utility model are:

[0017] This invention utilizes a duct-type drying mechanism, where hot air is distributed into several air supply ducts and then blown out through several evenly spaced air outlets. This allows for comprehensive, thorough drying of the denitrification catalyst on the loading truck, eliminating temperature differences between the corners and the center of the container, ensuring uniform heating of the catalyst, and guaranteeing consistent product quality. Furthermore, by installing four sets of moving wheels and two sets of guide wheels at the bottom of the loading truck, with both sets of guide wheels housed within guide rails, the loading, pulling, and positioning of the truck within the container becomes easier, more accurate, and more stable. This prevents damage to the denitrification catalyst from impacts, reduces labor intensity, and improves loading efficiency. The guide rails also ensure the safety of the loading truck during sliding, preventing detachment accidents. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model without the cargo truck, the moving wheels, and the guide wheels;

[0019] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0020] Figure 3 This is a structural diagram of the fixed bracket, fixed support rod, movable wheel and guide wheel of this utility model;

[0021] Figure 4 This is a partial structural diagram of the cargo truck, moving wheels, and guide wheels of this utility model;

[0022] Figure 5 This is a partial structural cross-sectional view of the housing, mounting groove, and atomizing nozzle of this utility model.

[0023] In the diagram: 1. Box body; 2. Guide rail; 3. Cargo truck; 31. Fixed bracket; 32. Fixed support rod; 33. Placement plate; 4. Moving wheels; 5. Guide wheels; 6. Pipe-type drying mechanism; 61. Air supply duct; 62. Air outlet duct; 63. Fixed base; 7. Mounting groove; 8. Atomizing nozzle; 9. Limiting rail. Detailed Implementation

[0024] The present invention will now be described and explained in detail with reference to the accompanying drawings.

[0025] Example 1

[0026] like Figure 1-5 As shown, the catalyst drying tunnel kiln includes a box body 1 with an opening at one end. Several sets of guide rails 2 are evenly and spaced fixedly arranged at the bottom of the inner cavity of the box body 1. Several cargo cars 3 are slidably arranged within each set of guide rails 2. Four sets of moving wheels 4 are evenly and spaced rotatably arranged at the bottom of each cargo car 3. Guide wheels 5 are rotatably arranged on both sides of the bottom of each cargo car 3 in coordination with the guide rails 2. Both sets of guide wheels 5 are arranged within the guide rails 2. A pipeline drying mechanism 6 is also fixedly arranged at the bottom of the inner cavity of the box body 1. The pipeline drying mechanism 6 includes several air supply pipes 61 evenly and spaced fixedly arranged at the bottom of the inner cavity of the box body 1. Several air outlet pipes 62 are evenly and spaced on the side walls of the air supply pipes 61. A circulating fan is arranged on the side of the box body 1 away from the opening. The ends of the air supply pipes 61 near the circulating fan are connected to the air outlets of the circulating fan, and the other ends of the air supply pipes 61 are closed.

[0027] With the above configuration, the opening end of the box 1 is equipped with a sealed door. After the loading vehicle 3 containing the denitrification catalyst to be dried is pushed into the box 1, the sealed door can be closed. The guide rail 2 extends along the length of the box 1, and two sets of guide rails 2 are arranged in parallel to guide the loading vehicle 3. The loading vehicle 3 is used to place the denitrification catalyst to be dried. The width of the guide rail 2 is greater than the diameter of the guide wheel 5. Both sets of guide wheels 5 can move along the guide rail 2. When the guide wheel 5 contacts the inner wall of one side of the guide rail 2, the guide wheel 5 rotates along the inner wall of one side of the guide rail 2, which can effectively prevent the loading vehicle 3 from deviating during sliding, and play a limiting role in the movement of the loading vehicle 3, ensuring the stability of the movement of the loading vehicle 3. By setting up a pipeline drying mechanism... 6. Hot air is distributed into several air supply pipes 61 and then blown out through several evenly arranged air outlet pipes 62, which can dry the denitrification catalyst on the loading truck 3 in an all-round and thorough manner, eliminating the temperature difference between the corners and the center of the box 1, ensuring that the denitrification catalyst is heated evenly throughout, and ensuring the consistency of product quality. By setting four sets of moving wheels 4 and two sets of guide wheels 5 at the bottom of the loading truck 3, and with both sets of guide wheels 5 set in the guide rail 2, the pushing, pulling and positioning of the loading truck 3 in the box 1 can be made more labor-saving, accurate and stable, avoiding collision damage to the denitrification catalyst, reducing labor intensity and improving furnace loading efficiency. Furthermore, the guide rail 2 ensures the safety of the loading truck 3 during the sliding process and avoids detachment accidents.

[0028] The top of the inner cavity of the box 1 is provided with two sets of mounting grooves 7 evenly spaced apart. Each set of mounting grooves 7 includes several mounting grooves 7 evenly spaced apart along the length of the box 1. Atomizing nozzles 8 are fixedly installed in the middle of the several mounting grooves 7.

[0029] A water tank is also provided on the side of the housing 1 away from the opening end. The water tank is equipped with a dual-output high-pressure water pump. Both output ends of the dual-output high-pressure water pump are fixedly connected to high-pressure water pipes. Both sets of high-pressure water pipes are fixedly installed on the top of the housing 1. Two sets of atomizing nozzles 8 are respectively connected to the two sets of high-pressure water pipes.

[0030] With the above settings, the dual-output high-pressure water pump is started in the early stage of drying. The dual-output high-pressure water pump can pressurize the water in the water tank and deliver it to several atomizing nozzles 8 through two sets of high-pressure water pipes. Then, it is sprayed into the box 1 to achieve atomized spraying and humidify the hot air. This avoids the problem of surface skin formation and cracking caused by the rapid evaporation of moisture in the catalyst wet material, thereby improving the product qualification rate.

[0031] The air supply duct 61 is provided in three sets, and the three sets of air supply duct 61 and the two sets of guide rails 2 are arranged alternately.

[0032] On both sides of the air supply duct 61 located in the middle, several air outlet pipes 62 are uniformly and fixedly arranged along the length of the air supply duct 61. On the opposite sides of the two sets of air supply ducts 61 located on both sides, several air outlet pipes 62 are uniformly and fixedly arranged along the length of the air supply duct 61.

[0033] The bottom of each of the three sets of air supply ducts 61 is uniformly and at intervals with several fixed bases 63 along the length of the air supply duct 61. The fixed bases 63 are all fixedly installed at the bottom of the inner cavity of the box body 1.

[0034] With the above configuration, the duct-type drying mechanism 6 is used to deliver hot air into the inner cavity of the housing 1 to dry the denitrification catalyst; the three sets of air supply ducts 61 extend along the length of the housing 1 and are arranged in parallel; the three sets of air supply ducts 61 and the two sets of guide rails 2 are staggered, that is, a set of guide rails 2 is set between two adjacent sets of air supply ducts 61 to ensure that the hot air can be evenly distributed around the truck 3; the air outlets of several air outlet pipes 62 are all inclined downwards and facing the truck 3, so that the hot air can be directly blown onto the surface of the denitrification catalyst on the truck 3, improving drying efficiency and uniformity; several fixed bases 63 are used to enhance the installation stability of the air supply ducts 61 and prevent the air supply ducts 61 from shaking during operation.

[0035] The cargo truck 3 includes a fixed support 31, four sets of movable wheels 4 and two sets of guide wheels 5, all of which are rotatably mounted at the bottom of the fixed support 31. Several sets of fixed support rods 32 are evenly and intermittently fixed between the inner walls on both sides of the fixed support 31 along the height direction of the fixed support 31.

[0036] Each set of fixed support rods 32 includes several fixed support rods 32 that are evenly spaced along the horizontal direction.

[0037] Each set of fixed support rods 32 can have several placement plates 33 placed at the top in the horizontal direction, and the denitrification catalyst can be placed at the top of each of the placement plates 33.

[0038] With the above configuration, the fixed support rod 32 and the fixed bracket 31 are fixedly connected by welding, which improves the structural strength of the truck 3; the placement plate 33 is made of high temperature resistant material; the top of several placement plates 33 can be used to place denitrification catalyst, realizing the layered batch placement of denitrification catalyst and improving drying efficiency.

[0039] A limit track 9 is fixedly installed at one end of the guide track 2 near the outlet end of the box 1.

[0040] With the above configuration, each set of guide rails 2 includes two parallel guide rails 2. Two limiting rails 9 are fixedly installed at the end of the two guide rails 2 near the outlet end of the box body 1. The two limiting rails 9 are inclined to their opposite sides, that is, the distance between the ends of the two limiting rails 9 away from the guide rails 2 is greater than the distance between the ends of the two limiting rails 9 near the guide rails 2, which can play a limiting and guiding role for the cargo truck 3.

[0041] Working principle and process:

[0042] In use, first, place several placement plates 33 evenly on the top of the fixed support rod 32, and then place several denitrification catalysts to be dried on several placement plates 33 respectively. After placement, push the truck 3 into the box 1. At this time, the two sets of guide wheels 5 slide along the guide rail 2. When the guide wheel 5 contacts the inner wall on one side of the guide rail 2, the guide wheel 5 rotates along the inner wall on one side of the guide rail 2, pushing the truck 3 to the designated position inside the box 1. After all the trucks 3 loaded with denitrification catalysts to be dried have been pushed to the designated position inside the box 1, close the sealing door at the opening end of the box 1.

[0043] Start the circulating fan and dual-output high-pressure water pump. When the circulating fan is working, it delivers hot air to the three sets of air supply pipes 61. The hot air is evenly blown onto the denitrification catalyst on the truck 3 through several air outlet pipes 62 to dry the catalyst. At the same time, the dual-output high-pressure water pump pressurizes the water in the water tank and delivers it to the two sets of atomizing nozzles 8 through two sets of high-pressure water pipes. The atomized spraying through the two sets of atomizing nozzles 8 humidifies the hot air, regulates the humidity in the box 1, and prevents the catalyst from cracking.

[0044] During the drying process, hot air circulates within the chamber 1. The reasonable layout of the pipeline drying mechanism 6 ensures that all parts of the denitrification catalyst are heated evenly. The truck 3 moves along the guide rail 2 via two sets of guide wheels 5 to maintain stability and avoid deviation. After drying, the circulating fan and the dual-output high-pressure water pump are turned off, the sealed door is opened, the truck 3 is pulled out of the chamber 1, and the dried denitrification catalyst can be taken out.

Claims

1. A catalyst drying tunnel kiln, comprising a housing (1), characterized in that, One end of the box (1) is open. Several sets of guide rails (2) are evenly and spaced fixedly arranged at the bottom of the inner cavity of the box (1). Several cargo trucks (3) are slidably arranged in the several sets of guide rails (2). Four sets of moving wheels (4) are evenly and spaced rotatingly arranged at the bottom of the cargo trucks (3). Guide wheels (5) are slidably arranged on both sides of the bottom of the cargo trucks (3) in coordination with the guide rails (2). Both sets of guide wheels (5) are arranged in the guide rails (2). A pipeline drying mechanism (6) is also fixedly arranged at the bottom of the inner cavity of the box (1). The pipeline drying mechanism (6) includes several air supply pipes (61) evenly and spaced fixedly arranged at the bottom of the inner cavity of the box (1). Several air outlet pipes (62) are evenly and spaced on the side wall of the air supply pipes (61). A circulating fan is arranged on the side of the box (1) away from the open end. The ends of the several air supply pipes (61) close to the circulating fan are connected to the air outlet of the circulating fan. The other end of the air supply pipes (61) is closed.

2. The catalyst drying tunnel kiln according to claim 1, characterized in that, The top of the inner cavity of the box (1) is provided with two sets of mounting grooves (7) evenly and at intervals. Each set of mounting grooves (7) includes several mounting grooves (7) evenly and at intervals along the length of the box (1). Atomizing nozzles (8) are fixedly provided in the middle of the several mounting grooves (7).

3. The catalyst drying tunnel kiln according to claim 2, characterized in that, A water tank is also provided on the side of the box (1) away from the opening end. A dual-output high-pressure water pump is provided in the water tank. Both output ends of the dual-output high-pressure water pump are fixedly connected to high-pressure water pipes. Both sets of high-pressure water pipes are fixedly installed on the top of the box (1). Two sets of atomizing nozzles (8) are respectively connected to the two sets of high-pressure water pipes.

4. The catalyst drying tunnel kiln according to claim 1, characterized in that, The air supply duct (61) is provided in three sets, and the three sets of air supply ducts (61) and two sets of guide rails (2) are arranged in an alternating manner.

5. The catalyst drying tunnel kiln according to claim 4, characterized in that, On both sides of the air supply duct (61) located in the middle, several air outlet pipes (62) are uniformly and fixedly arranged along the length direction of the air supply duct (61). On the opposite sides of the two sets of air supply ducts (61) located on both sides, several air outlet pipes (62) are uniformly and fixedly arranged along the length direction of the air supply duct (61).

6. The catalyst drying tunnel kiln according to claim 4, characterized in that, The bottom of each of the three sets of air supply ducts (61) is uniformly and at intervals with several fixed bases (63) along the length of the air supply duct (61), and the several fixed bases (63) are fixedly installed at the bottom of the inner cavity of the box (1).

7. The catalyst drying tunnel kiln according to claim 1, characterized in that, The cargo truck (3) includes a fixed bracket (31), four sets of movable wheels (4) and two sets of guide wheels (5) are rotatably set at the bottom of the fixed bracket (31), and several sets of fixed support rods (32) are uniformly and intermittently fixed between the inner walls on both sides of the fixed bracket (31) along the height direction of the fixed bracket (31).

8. The catalyst drying tunnel kiln according to claim 7, characterized in that, Each set of fixed supports (32) includes several fixed supports (32) that are evenly spaced along the horizontal direction.

9. The catalyst drying tunnel kiln according to claim 7, characterized in that, Each set of fixed support rods (32) can have several placement plates (33) placed at the top in the horizontal direction, and the denitrification catalyst can be placed at the top of each of the placement plates (33).

10. The catalyst drying tunnel kiln according to claim 1, characterized in that, A limit track (9) is fixedly installed at one end of the guide track (2) near the outlet end of the box (1).

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